<?php

/**
 * Class QRMarkupHTML
 *
 * @created      06.06.2022
 *
 * @author       smiley <smiley@chillerlan.net>
 * @copyright    2022 smiley
 * @license      MIT
 */
declare(strict_types=1);

namespace zxf\QrCode\Output;

use function implode;
use function sprintf;

/**
 * HTML output (a cheap markup substitute when SVG is not available or not an option)
 */
class QRMarkupHTML extends QRMarkup
{
    final public const MIME_TYPE = 'text/html';

    protected function createMarkup(bool $saveToFile): string
    {
        $rows = [];
        $cssClass = $this->getCssClass();

        foreach ($this->matrix->getMatrix() as $row) {
            $element = '<span style="background: %s;"></span>';
            $modules = array_map(fn (int $M_TYPE): string => sprintf($element, $this->getModuleValue($M_TYPE)), $row);

            $rows[] = sprintf('<div>%s</div>%s', implode('', $modules), $this->eol);
        }

        $html = sprintf('<div class="%1$s">%3$s%2$s</div>%3$s', $cssClass, implode('', $rows), $this->eol);

        // wrap the snippet into a body when saving to file
        if ($saveToFile) {
            $html = sprintf(
                '<!DOCTYPE html><html lang="none">%2$s<head>%2$s<meta charset="UTF-8">%2$s'.
                    '<title>QR Code</title></head>%2$s<body>%1$s</body>%2$s</html>',
                $html,
                $this->eol,
            );
        }

        return $html;
    }
}
